Slug rejector scavenger for magnetic coin testers



swc; REJECTOR SCAVENGER FOR MAGNETIC com TESTERS INVENTOR. 6%;

L. J. ANDRES Filed May '14, 1949 June 5, 1951 F IG 4 EJEAA Patented June5, 1951 SLUG REJECTOR SCAVEN GER FOR MAGNETIC COIN TESTERS Lloyd J.Andres, Chicago, Ill., assignor to National Rejectors, Inc., St. Louis,Mo., a corporation of Missouri Application May 14, 1949, Serial No.93,300

3 Claims.

This invention relates in general to coin separating apparatus and moreparticularly to a device for separating spurious magnetic coins fromacceptable coins.

In conventional type slug rejectors a permanent magnet is usuallyemployed to provide a concentrated magnetic field for testing theconductivity of a coin passing therethrough by reducing its velocity inaccordance with its conductivity.

The purpose of this invention is the provision of means for releasingnon-acceptable para-magnetic coins which have retained against the faceof the magnet. Previous to this invention a pivotally mounted lever waspositioned for movement over the face of the magnet to dislodge coinsretained thereto. This pivotal type of arm has many objections which areovercome by the use of a spring adapted to bend in a manner to releasethe coin and simultaneously block the entry of other coins until it hasassumed its normal operating position and comprises a principal objectof the invention.

A further object of the invention is the provision of a spring membernormally positioned above a coin runway and capable of being bowed intodownward arcuate shape when operated by lever means and retainingtherein energy to return itself and all related parts to normal positionwhen released.

These and other objects of the invention will be apparent in oneembodiment shown and described in the appended drawing andspecification.

Fig. 1 is .a, plan view of a slug rejector containing a spring scavengermeans.

Fig. 2 is the same as Fig. 1 in changed position.

Fig. 3 is a fragmentary cross-sectional elevation view of the devicetaken through section line 3-3, Fig. 1.

Fig. 4 is a fragmentary end elevation View taken through section line4--4 Fig. 2.

Fig. 1 shows a plan view of the slug rejector comprising a frame I and agate 2, which gate is pivoted to frame I by a hinge pin 3. A spring 4surrounding pin 3 is adapted to coact between gate 2 and frame I tonormally urge the gate into closed position as shown. A scavenger lever5 is pivotally secured at one end to frame I by pin 6 and a coin entry 1formed by the frame I and the gate 2 leads to a testing passageway, tobe hereinafter described, between the inner surfaces of the frame I andthe gate 2.

A stud 8 secured in lever 5 extends through a clearance aperture inframe I and normally projects into a conical cavity 9 formed in the gateas shown.

Referrin to Fig. 2, when the lever 5 is manually moved downward the stud8 will cam against the inner surface of the conical cavity 9 and pivotthe gate about pin 3 outward from the frame against the restrainingaction of spring 4 as shown.

Referring to Figs. 3 and 4 a conventional cradle member II]counterweighted and pivotally positioned to frame I has a pair ofprojections II and I2 extending through suitable apertures in frame Iinto the path of a coin descending in entry l. Gate 2 is provided with asloping runway I3 along which coins are intended to descend downwardlyfor testing after displacement by the cradle member Ill.

A permanent magnet I4 secured in the frame I has a pair of poles I5positioned flush with the inner surface of the frame I and above runwayI3. The end I6 of the scavenger lever opposite its pivoted end is formedobliquely as shown in order to coact with a roller I'I journalled on apin 2'! the end of a lever I8, which lever is pivotally mounted to theframe I about a stud I9. A fiat scavenger spring 22 is pivotally securedat one end about a stud 23 secured in the frame I. The opposite end ofthe spring 22 is pivotally secured to a flanged pin 20 slidably securedin an aperture 2| in the frame I. The spring 22 in normal position isslightly bowed and provides the upper surface of the coin testingpassageway and because of its strategic placement coins having diameterlarger than that of an acceptable coin delivered by the cradle will beprevented from moving downward along the runway I3. The lower end oflever I8 is adapted to engage the loop of the sprin 22 surrounding pin20 when operated.

It is well known that acceptable coins in descending downward on runwayI3 will be retarded sufliciently by the magnetic field provided by polesI5 to impinge upon anvil 24 and thence rebound over abutment 25 foracceptance. Other non-acceptable coins will be retarded sufiiciently todescend between anvil 24 and abutment 25 and thence be rejected.

In operation and assuming that a coin of proper dimensions but havingpara-magnetic properties is deposited in entry I it will impinge uponthe cradle member projections II and I2 and be transferred thereby tofurther descend along runway I3 to a position adjacent the magnet polesI5 where it will be retained thereto. In order to remove the suspendedcoin for the further operation of the device the scavenger lever 5 ismoved downward whereupon two functions will occur substantiallysimultaneously: the stud 8 will cam the gate 2 outward from the frame,and the oblique end l6 of lever 5 will cam against roller I1 and movelever l8 clockwise about its stud L9.

The downward end of the lever 18 which normally rests in engagementagainst the end f sprin 22 will slide pin 2i] along its aperture 2| andbow spring 22 into position shown by dotted lines. This movement of thespring 22 will dislodge a coin represented by dotted figure 26 from themagnet where it will descend by gravity to .a rejection passageway notshown.

The initial movement of lever 5 will by means of stud 8 oam the gate 2outward from the frame in order to move runway [3 from under thesuspended coin and thus .provide a path for the escape of the coin whendisplaced by spring 22.

When the lever B is released the energy stored in spring 22 will reversethe motion of all parts previously described and return them to theirinitial positions.

Having described my invention I claim:

1. In a coin separator a frame, a gate member pivotally secured to saidframe including spring means for normally urging said gate in proximitywith said frame forming a coin testing passageway therebetween, asloping runway integral with said gate for normally conducting coins ina predetermined path, a permanent magnet in said frame positionedadjacent said path, an elongated spring member normally positionedsubstantially parallel with said runway and above said magnet and saidpath pivotally secured at one end to said frame, the opposite end ofsaid spring member secured to a movable support means, said supportmeans retained in said frame and adapted for movement to bow said springmember downward across said magnet, lever means secured to said frameand adapted to coact with said gate member and one end of said springmember whereby the movement of said lever means will concurrently movesaid gate member outward from said frame to displace said runway fromsaid path and bow said spring member downward across the outer surfaceof 7 said magnet to remove from said magnet any paramagnetic articleretained thereby.

2. In a scavenger means for a slug projector comprising a frame, meansin said frame forming a coin testing path, a runway member pivotallysecured to said frame for conducting coins along said path, said runwaymember normally urged by spring means in proximity with said frame, anelongated spring member pivotally mounted at both ends in said frame andnormally positioned above said path and substantially parallel to saidrunway member, lever means secured in said frame articulated with oneend of said spring member and said runway member whereby the movement ofsaid lever means against the action of said spring means willconcurrently displace said runway member outward from said path and bowsaid spring member downward across said path to remove any debris orarticle retained therein and upon the release of said lever means saidspring means will return said lever and runway member to their normalpositions .and permit said spring member to return to its said normalposition.

3. In a coin separator a scavenger means comprising a frame, means insaid frame forming a coin testing path, a gate pivotally secured to saidframe, said gate normally urged by spring means a predetermined spacedrelation with said frame, a sloping runway secured to said gate forconducting coins in a predetermined path in said passageway, a permanentmagnet positioned in said frame adjacent said path, an elongated springmember pivotally secured in said frame substantially parallel with saidrunway and above said path, lever means pivoted to said frame andadapted to coact with one end of said spring member and said gate whenthe said lever is moved whereby the movement of said lever means willconcurrently bow said spring member downward across the said path andswing said gate and runway outward from said frame to scavenge coins orother articles from said passageway.

LLOYD J. ANDRES.

No references cited.

